Q: Is 677,661 a Prime Number?
A: No, 677,661 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 677661 can be evenly divided by 1 3 113 339 1,999 5,997 225,887 and 677,661, with no remainder.
Since 677,661 cannot be divided by just 1 and 677,661, it is not a prime number.